Melt butter in a heavy bottom saucepan over medium high heat.,______,Stir in flour and cook, stirring constantly for 2 minutes.,add canned tomatoes, sugar, marjoram, basil, bay leaf, and chicken broth.,Simmer 30 minutes.,Discard bay leaf.,Puree soup in batches in a blender until smooth.,Transfer to a double boiler and stir in heavy cream, curry powder, whit pepper, paprika, and salt.,Simmer until ready to serve.